The State, a political subdivision, or a unit of the State or of a political subdivision may keep only the information about a person that: (1) is needed by the State, the political subdivision, or the unit to accomplish a governmental purpose that is authorized or required to be accomplished under: (i) a statute or any other legislative mandate; (ii) an executive order of the Governor; (iii) an executive order of the chief executive of a local jurisdiction; or (iv) a judicial rule; and (2) is relevant to accomplishment of the purpose.
Maryland Legal Code